Science: Versatile Researcher

Last week the scientific world
heard of a noise that was literally "killing." Inaudible to human ears,
it consisted of extremely short, rapid sound waves produced from
electrically driven quartz crystals. Similar waves had been used in
submarine detection, during the War, when it was noticed that fish in
the experimental tanks were occasionally killed. Subsequent experiment
had shown that stagnant water could be freed from microorganisms; that small fish died in convulsions after "hearing" the
quartz waves; that the blood count of a swimming mouse was reduced one
half after 20...